*cpu1: uvm_fault(0xfffffd806b9db010, 0x8, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xd6 end of kernel end trace frame: 0x42e7d775610, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002e49b7d0 rbx 0 rdx 0 rcx 0 rax 0x2a r8 0xffff80002e49b700 r9 0 r10 0x70c12c462d7ad883 r11 0x81de650716b03488 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff8244c4e6 proc_trampoline+0xd6 cs 0x8 rflags 0x246 rsp 0xffff80002e49b750 ss 0 proc_trampoline+0xd6: movl $0,%gs:0x540 ddb{0}> show proc PROC (syz-executor.3) pid=103094 stat=onproc flags process=10 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000295ff270,0xffff8000295fe2c0 process=0xffff8000295e5d30 user=0xffff80002e496000, vmspace=0xfffffd806b9db740 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1439 17404 80659 32767 2 0x10 syz-executor.6 57626 508886 92908 32767 2 0x10 syz-executor.4 57626 430278 92908 32767 7 0x4000010 syz-executor.4 39006 375838 3247 32767 2 0x10 syz-executor.5 39006 62200 3247 32767 2 0x4000010 syz-executor.5 53450 461617 1214 32767 2 0x10 syz-executor.3 *53450 103094 1214 32767 7 0x4000010 syz-executor.3 34241 164132 34903 32767 2 0x10 syz-executor.2 34241 192647 34903 32767 2 0x4000010 syz-executor.2 1497 323566 90092 32767 2 0x10 syz-executor.7 1214 152305 36447 32767 3 0x90 nanoslp syz-executor.3 36447 21730 29016 0 3 0x82 wait syz-executor.3 88640 259088 0 0 3 0x14200 bored sosplice 3247 250695 14069 32767 3 0x90 nanoslp syz-executor.5 90092 75525 28485 32767 3 0x90 nanoslp syz-executor.7 28485 80106 29016 0 3 0x82 wait syz-executor.7 80659 362508 35709 32767 3 0x90 nanoslp syz-executor.6 35709 358940 29016 0 3 0x82 wait syz-executor.6 14069 504883 29016 0 3 0x82 wait syz-executor.5 92908 231093 95478 32767 3 0x90 nanoslp syz-executor.4 95478 255007 29016 0 3 0x82 wait syz-executor.4 34242 469668 12689 32767 3 0x10 biowait syz-executor.1 34903 477665 9336 32767 3 0x90 nanoslp syz-executor.2 71520 72756 7687 32767 2 0x10 syz-executor.0 9336 129788 29016 0 3 0x82 wait syz-executor.2 12689 35763 29016 0 3 0x82 wait syz-executor.1 7687 499494 29016 0 3 0x82 wait syz-executor.0 29016 482790 89230 0 3 0x82 kqread syz-fuzzer 29016 504604 89230 0 3 0x4000082 thrsleep syz-fuzzer 29016 250106 89230 0 3 0x4000082 thrsleep syz-fuzzer 29016 466738 89230 0 3 0x4000082 wait syz-fuzzer 29016 180645 89230 0 3 0x4000082 wait syz-fuzzer 29016 55056 89230 0 3 0x4000082 wait syz-fuzzer 29016 299722 89230 0 3 0x4000082 wait syz-fuzzer 29016 110819 89230 0 3 0x4000082 thrsleep syz-fuzzer 29016 69007 89230 0 3 0x4000082 thrsleep syz-fuzzer 29016 438488 89230 0 3 0x4000082 wait syz-fuzzer 29016 118876 89230 0 3 0x4000082 wait syz-fuzzer 29016 300477 89230 0 3 0x4000082 thrsleep syz-fuzzer 29016 38034 89230 0 3 0x4000082 wait syz-fuzzer 29016 188757 89230 0 3 0x4000082 wait syz-fuzzer 29016 418197 89230 0 3 0x4000082 thrsleep syz-fuzzer 29016 167457 89230 0 3 0x4000082 thrsleep syz-fuzzer 89230 350686 60010 0 3 0x10008a sigsusp ksh 60010 360311 85472 0 3 0x9a kqread sshd 17521 261461 1 0 3 0x100083 ttyin getty 85472 344542 1 0 3 0x88 kqread sshd 44485 404237 52462 73 3 0x1100090 kqread syslogd 52462 414373 1 0 3 0x100082 netio syslogd 67714 267528 1 0 3 0x100080 kqread resolvd 73773 27235 56623 77 3 0x100092 kqread dhcpleased 22723 509180 56623 77 3 0x100092 kqread dhcpleased 56623 142347 1 0 3 0x80 kqread dhcpleased 72034 435356 0 0 3 0x14200 bored smr 90233 489188 0 0 2 0x14200 zerothread 14908 244 0 0 3 0x14200 aiodoned aiodoned 67451 49710 0 0 3 0x14200 syncer update 10136 203466 0 0 3 0x14200 cleaner cleaner 45681 62662 0 0 3 0x14200 reaper reaper 89545 508190 0 0 3 0x14200 pgdaemon pagedaemon 49482 46696 0 0 3 0x14200 bored viomb 24839 8955 0 0 3 0x40014200 acpi0 acpi0 79667 327543 0 0 3 0x40014200 idle1 36302 373382 0 0 3 0x14200 bored softnet 38409 333349 0 0 3 0x14200 bored softnet 91681 371256 0 0 3 0x14200 bored softnet 40522 371212 0 0 3 0x14200 bored softnet 70490 128276 0 0 3 0x14200 bored systqmp 37838 431729 0 0 3 0x14200 bored systq 35422 336471 0 0 3 0x40014200 bored softclock 36495 264754 0 0 3 0x40014200 idle0 1 291132 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd80686a25e0) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_extract+0xa2 sys/arch/amd64/amd64/pmap.c:1518 #4 uvm_fault_upper_lookup+0x129 sys/uvm/uvm_fault.c:861 #5 uvm_fault+0x129 sys/uvm/uvm_fault.c:606 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 #8 recall_trap+0x8 Process 57626 (syz-executor.4) thread 0xffff8000295ff270 (430278) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829eba40) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:415 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 tsleep+0x12c sys/kern/kern_synch.c:155 #5 biowait+0x91 sys/kern/vfs_bio.c:1268 #6 bwrite+0x21b sys/kern/vfs_bio.c:769 #7 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 #8 ufs_direnter+0x8fa sys/ufs/ufs/ufs_lookup.c:909 #9 ufs_makeinode+0x4cc sys/ufs/ufs/ufs_vnops.c:1856 #10 ufs_symlink+0x47 sys/ufs/ufs/ufs_vnops.c:1370 #11 VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1802 #13 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80686ed808) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1818 #10 ufs_symlink+0x47 sys/ufs/ufs/ufs_vnops.c:1370 #11 VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:426 #12 dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1802 #13 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #14 Xsyscall+0x128 Process 53450 (syz-executor.3) thread 0xffff8000295ffa50 (103094) exclusive rwlock amaplk r = 0 (0xfffffd80763f2280) #0 witness_lock+0x44d #1 uvm_fault_check+0x422 sys/uvm/uvm_fault.c:783 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #3 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #4 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b9db758) #0 witness_lock+0x44d #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1773 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd80686a25e0) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_extract+0xa2 sys/arch/amd64/amd64/pmap.c:1518 #4 uvm_fault_upper_lookup+0x129 sys/uvm/uvm_fault.c:861 #5 uvm_fault+0x129 sys/uvm/uvm_fault.c:606 #6 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #7 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 #8 recall_trap+0x8 Process 34242 (syz-executor.1) thread 0xffff8000ffff3268 (469668) exclusive rrwlock inode r = 0 (0xfffffd80686ede68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #10 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #10 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80728b2098) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097 #8 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10192 6409K 6420K 78643K 11288 0 pcb 13 8K 8K 78643K 13 0 rtable 236 6K 6K 78643K 509 0 ifaddr 82 16K 16K 78643K 98 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 35K 78643K 60 0 ioctlops 0 0K 2K 78643K 73 0 iov 0 0K 16K 78643K 597 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1272 80K 80K 78643K 1543 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 20 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 428 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 105K 78643K 2355 0 sigio 0 0K 0K 78643K 23 0 proc 56 78K 103K 78643K 744 0 subproc 104 6K 6K 78643K 130 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 192 0 in_multi 99 6K 6K 78643K 143 0 ether_multi 1 0K 0K 78643K 4 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 682 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 301 83K 531K 78643K 18097 0 UVM aobj 67 5K 5K 78643K 67 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 79 0 NDP 11 0K 2K 78643K 33 0 temp 124 4734K 4798K 78643K 9017 0 kqueue 12 18K 26K 78643K 196 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 172 0 169 3 2 1 2 0 8 0 rtentry 112 136 0 25 4 0 4 4 0 8 0 unpcb 144 4118 0 4105 25 16 9 10 0 8 8 syncache 296 19 0 19 6 5 1 1 0 8 1 tcpqe 32 106 0 106 4 4 0 1 0 8 0 tcpcb 776 855 0 849 29 24 5 8 0 8 3 arp 120 23 0 4 1 0 1 1 0 8 0 ipq 40 5 0 5 2 2 0 1 0 8 0 ipqe 40 10 0 10 2 2 0 1 0 8 0 inpcb 368 1749 0 1737 29 21 8 8 0 8 4 nd6 48 32 0 8 1 0 1 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 545 0 92 29 0 29 29 0 8 0 art_table 32 546 0 92 4 0 4 4 0 8 0 art_node 16 135 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 426 0 416 1 0 1 1 0 8 0 shmpl 112 64 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 4256 0 2820 91 0 91 91 0 8 0 ffsino 272 4256 0 2820 97 0 97 97 0 8 0 nchpl 144 7348 0 5717 63 0 63 63 0 8 0 uvmvnodes 80 4395 0 0 90 0 90 90 0 8 0 vnodes 216 4395 0 0 245 0 245 245 0 8 0 namei 1024 25800 0 25798 4 3 1 2 0 8 0 percpumem 16 42 0 2 1 0 1 1 0 8 0 kstatmem 264 26 0 4 2 0 2 2 0 8 0 scxspl 216 22115 0 22114 18 17 1 8 0 8 0 plimitpl 152 562 0 539 8 6 2 2 0 8 1 sigapl 424 2629 0 2576 7 0 7 7 0 8 0 futexpl 64 20716 0 20716 3 2 1 1 0 8 1 knotepl 120 283 0 0 8 0 8 8 0 8 1 kqueuepl 216 579 0 571 11 6 5 5 0 8 4 pipepl 320 571 0 543 12 9 3 9 0 8 0 fdescpl 496 2611 0 2576 6 1 5 5 0 8 0 filepl 152 17937 0 17703 39 22 17 19 0 8 7 lockfpl 104 425 0 423 2 1 1 2 0 8 0 lockfspl 48 104 0 102 1 0 1 1 0 8 0 sessionpl 144 25 0 9 1 0 1 1 0 8 0 pgrppl 48 26 0 10 1 0 1 1 0 8 0 ucredpl 104 2115 0 2097 1 0 1 1 0 8 0 zombiepl 144 2576 0 2576 2 1 1 1 0 8 1 processpl 1064 2629 0 2576 4 0 4 4 0 8 0 procpl 672 7200 0 7128 11 3 8 8 0 8 1 sosppl 168 35 0 35 2 1 1 1 0 8 1 sockpl 488 6149 0 6123 92 61 31 35 0 8 27 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 16 0 0 2 0 2 2 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 340 0 0 35 0 35 35 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 1321 0 0 82 0 82 82 0 8 0 bufpl 288 7232 0 899 453 0 453 453 0 8 0 anonpl 24 591391 0 578708 165 57 108 114 0 186 16 amapchunkpl 152 235592 0 234889 2227 2044 183 2226 0 158 150 amappl16 200 8442 0 8098 68 39 29 38 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 159 0 144 2 1 1 2 0 8 0 amappl13 176 6 0 5 1 0 1 1 0 8 0 amappl12 168 411 0 408 1 0 1 1 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 46 0 30 1 0 1 1 0 8 0 amappl9 144 991 0 987 1 0 1 1 0 8 0 amappl8 136 253 0 182 3 0 3 3 0 8 0 amappl7 128 67 0 52 1 0 1 1 0 8 0 amappl6 120 300 0 282 2 1 1 2 0 8 0 amappl5 112 153 0 145 1 0 1 1 0 8 0 amappl4 104 514 0 491 2 1 1 2 0 8 0 amappl3 96 7513 0 7459 2 0 2 2 0 8 0 amappl2 88 3017 0 2943 3 1 2 3 0 8 0 amappl1 80 61859 0 61140 23 6 17 21 0 8 0 amappl 88 17683 0 17479 8 2 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 66 0 0 2 0 2 2 0 8 0 uaddrrnd 24 2611 0 2576 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2611 0 2576 1 0 1 1 0 8 0 vmmpekpl 168 25947 0 25892 4 0 4 4 0 8 0 vmmpepl 168 247114 0 244409 197 60 137 144 0 357 15 vmsppl 368 2610 0 2576 4 0 4 4 0 8 0 rwobjpl 56 74125 0 68234 88 3 85 85 0 8 1 pdppl 4096 5229 0 5152 159 78 81 85 0 8 4 pvpl 32 1144248 0 1125460 338 138 200 267 0 265 34 pmappl 248 2610 0 2576 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1001 0 104 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xd6 end of kernel end trace frame: 0x42e7d775610, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x28 sys/arch/amd64/amd64/bus_space.c:651 comcnputc(800,2d) at comcnputc+0x1a7 sys/dev/ic/com.c:1269 cnputc(2d) at cnputc+0x4b sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1064 db_printf(ffffffff8265d384) at db_printf+0x85 sys/kern/subr_prf.c:498 fault(ffffffff8260fa89) at fault+0x95 sys/arch/amd64/amd64/trap.c:154 kpageflttrap(ffff80002e494ca0,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:289 kerntrap(ffff80002e494ca0) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002e494da0) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:271 end trace frame: 0xffff80002e494e10, count: 0 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x28 sys/arch/amd64/amd64/bus_space.c:651 comcnputc(800,2d) at comcnputc+0x1a7 sys/dev/ic/com.c:1269 cnputc(2d) at cnputc+0x4b sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1064 db_printf(ffffffff8265d384) at db_printf+0x85 sys/kern/subr_prf.c:498 fault(ffffffff8260fa89) at fault+0x95 sys/arch/amd64/amd64/trap.c:154 kpageflttrap(ffff80002e494ca0,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:289 kerntrap(ffff80002e494ca0) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002e494da0) at fifo_write+0x4e sys/miscfs/fifofs/fifo_vnops.c:271 VOP_WRITE(fffffd8076434630,ffff80002e494e38,8,fffffd807f7d7138) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8076434630,ffff800021259000,f9,0,1,30d7961eec09f8d,ffff80002e494f60,fffffd8076434630,78) at vn_rdwr+0xe9 sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002e494f60) at ufs_symlink+0x142 sys/ufs/ufs/ufs_vnops.c:1386 VOP_SYMLINK(fffffd8076434ea0,ffff80002e4950e0,ffff80002e495110,ffff80002e495010,ffff800021259000) at VOP_SYMLINK+0xd0 sys/kern/vfs_vops.c:426 dosymlinkat(ffff8000295ff270,200002c0,ffffff9c,20000040) at dosymlinkat+0x154 sys/kern/vfs_syscalls.c:1802 syscall(ffff80002e495290) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e495290) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf072bb15970, count: -21